How bad was winter?

The Chicago Tribune has an infographic this weekend with the final statistics of the past winter. After defining the "cold season" as the "period from the first freeze of the fall to the last freeze of spring," and asserting we've had our last freeze (I'll let that float for now), then the 2013-14 winter looked like this:

It would have been helpful, I think, had they included some comparison data. It still encapsulates a really crappy winter, which now, finally, seems over.